Reports: Olympian Oscar Pistorius shoots, kills girlfriend

Oscar Pistorius of South Africa competes in the Men’s 400m heats at the London 2012 Olympic Games on Aug. 4, 2012. (Paul Gilham/Getty Images)

Oscar Pistorius, the South African runner known for his prosthetic “blade” legs, shot and killed his girlfriend Thursday morning, according to multiple reports.

The South African Press Association reported Pistorius was arrested in the fatal shooting at his home in Pretoria.

According to the Associated Press, Reeva Steenkamp, a model who spoke out on Twitter against rape and abuse of women, was shot four times in the predawn hours in the house, in a gated community in the capital, Pretoria, police said.

Earlier reports said that Pistorius apparently mistook his girlfriend for an intruder and shot her in the head and arm with a 9mm pistol. But police said there was a history of domestic trouble in the household.